At the opening of Airventure we were viewing the vintage aircraft when suddenly we heard the drone of 40 radial engines overhead and looked up to discover an entire formation of DC-3s. As I looked up I felt myself transported back in time and knew in an instant what it must have been like to be one of those pilots flying off on a mission that you didn't know you would return from. What a combined moment of glory and trepidation they must have experienced. It was a beautiful sight and an emotionally moving one. That will probably be the last time such a great number of them will fly together so I feel privileged, as all Oshkosh attendees must have felt that day, to witness such a rare event.